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Model

30 

45

60

75

100

125

150

175

200

225

250

300

350

400

Total Input 

[Btu/h] x [1000]

30

45

60

75

100

125

150

175

200

225

250

300

350

385

Total Output 

[Btu/h] x [1000]

24.6

36.9

49.2

61.5

82

102.5

123

143.5

164

184.5

205

246

288.6 315.7

Efficiency

 82% - All Models

Number of Burners

2

3

4

5

6

7

7

8

9

10

11

12

14

14

Gas Connection 

[in]

3

/

8

3

/

8

½

½

½

½

½

½

½

¾

¾

¾

¾

¾

Inlet Pressure  

[in wc] NG Min.

 5 - All Models

 

LPG Propane Min.

 12 - All Models

 

NG & LP Propane Max.

 14 - All Models

Electrical Supply

 115 V / 60 Hz / 1 Ø - All Models

Full Load Amps @ 115 V

3.0

3.0

4.1

4.1

5.8

5.8

7.1

7.1

10.6

10.6

10.6

11.6

11.6

11.6

Air Volume 

[CFM]

691

691

1376

1376

1902

1902

2245

2245

3716

3716

3716

4663

4663

4663

Recommended Maximum

Mounting Height 

[ft]

12

12

15

15

20

20

20

20

25

25

25

30

30

30

Number of Axial Fans

1

1

1

1

1

1

1

1

1

1

1

2

2

2

Axial Fan Diameter 

[in]

10

10

16

16

16

16

16

16

19.7

19.7

19.7

16

16

16

Horsepower

.06

.06

.08

.08

.2

.2

.2

.2

.3

.3

.3

.4

.4

.4

Fan Motor Amps @ 115 V

1.8

1.8

2.6

2.6

4.3

4.3

4.3

4.3

4.7

4.7

4.7

8.6

8.6

8.6

Fan Motor RPM

1630

1630

1030

1030

1175

1175

1200

1200

1085

1085

1100

1155

1155

1155

Fan Motor Type

SP

SP

SP

SP

PSC

PSC

PSC

PSC

PSC

PSC

PSC

PSC

PSC

PSC

Flue Size 

[in]

 4 - All Models

Combustion Air Size 

[in]

4

4

4

4

4

4

4

4

4

4

4

5

5

5

Weight 

[lb]

65

70

85

90

105

110

205

225

255

265

270

355

375

375

Printed in U.S.A.

UHASNA

5M 1106  Rev. A

Roberts-Gordon, LLC

1250 William Street

P.O. Box 44

Buffalo, NY 14240-0044 USA 

Telephone: 716.852.4400

Fax: 716.852.0854

Toll Free: 800.828.7450

www.rg-inc.com

European Office:

Roberts Gordon Europe Limited

Telephone: +44(0) 1902 494425

Fax: +44(0) 1902 403200

Important Notice

The equipment described in this Data Sheet is suitable for most commercial and industrial heating applications. However, in certain environments,  

particularly where there is a chlorinated atmosphere (e.g. near degreasing plant or other solvent processes) or a particularly dusty atmosphere, specialist 

advice should be sought at the design stage. Roberts-Gordon reserves the right to alter product specification details without notice.

Installation Code and Annual Inspections:

 

 

All installations and service of ROBERTS GORDON

®

 products must be performed by a contractor qualified in the installation and service of products sold 

and supplied by Roberts-Gordon and conform to all requirements set forth in the ROBERTS GORDON

®

 manuals and all applicable governmental authorities 

pertaining to the installation, service and operation of the equipment. To help facilitate optimum performance and safety, Roberts-Gordon recommends that a 

qualified contractor annually inspect your ROBERTS GORDON

®

 products and perform service where necessary, using only replacement parts sold and sup-

plied by Roberts-Gordon, LLC.

Further Information:

 

Applications, engineering and detailed guidance on systems design, installation and product performance is available through  

ROBERTS GORDON

®

 representatives. Please contact us for any further information you may require, including the Installation, Operation and Service Manual. 

This product is not for residential use.

This document is intended to assist licensed professionals in the exercise of their professional judgement. 

© 2006 Roberts-Gordon, LLC   All rights reserved. No part of this work covered by the copyrights herein may be reproduced or copied in any form or by any means  

 

 

                – graphic, electronic, or mechanical, including photocopying, recording, taping, or information storage and retrieval systems – without written  

                                                  permission of Roberts-Gordon, LLC.

Combat

®

 UHA-Series Technical Data

Summary of Contents for Combat UHA 30 - 125

Page 1: ...paces with low profile design Models UHA 30 125 only n Reliable ignition with direct spark ignition burners n Minimize summer heat build up with remote fan operation n Longer life and less maintenance with optional stainless steel heat exchangers n Variable air throw direction with adjustable horizontal louvers and optional adjustable vertical louvers UHA Models 150 400 t UHA Models 30 125 t Comba...

Page 2: ...enter of Flue in 2 5 2 5 2 5 2 5 2 5 2 5 Recommended Mounting Height to Heater Base ft 10 10 12 12 20 20 Clearances to Combustibles Low Profile UHA Range Models 30 125 Above Heater 1 Below Heater 0 To Side of Heater 1 To Rear of Heater 18 Airflow Clearance To Front of Heater 118 Access Side Door 18 Access Clearance To Flue 2 Combat UHA30 UHA125 ClearanceandDimensionData ...

Page 3: ...e Center in 6 6 6 6 6 7 7 7 H Position of Flue in 4 5 4 5 4 75 4 75 4 75 4 9 4 9 4 9 J Gas Inlet Position in 5 9 5 9 5 9 5 9 5 9 8 7 8 7 8 7 K Electrical Supply Position in 3 4 3 4 3 4 3 4 3 4 6 2 6 2 6 2 Maximum Recommended Mounting Height to Heater Base ft 20 20 25 25 25 30 30 30 Clearances to Combustibles Standard UHA Range Models 150 400 Above Heater 6 Below Heater 3 To Side of Heater 6 To Rea...

Page 4: ...ost commercial and industrial heating applications However in certain environments particularly where there is a chlorinated atmosphere e g near degreasing plant or other solvent processes or a particularly dusty atmosphere specialist advice should be sought at the design stage Roberts Gordon reserves the right to alter product specification details without notice Installation Code and Annual Insp...

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